I agree with the rice bags and the getting up to move, in addition I found a seat cushion sold At Canadian tire stores in the car seat cover area, and maybe walmart might have them also. They have a special gel honeycomb foam filling and a handle to carry them with and really make a difference to my sore hips. I take the cushion with me to guild and other meetings, and when they went on special for $15 recently I got a seconde one so I can have one in my sesing chair and one at the computer. I too like the armless office chair with 5 wheels. I like my straight backed wooden chair too but it doesnt scoot back well on the carpet. I long for the day when we can afford to replace the old carpets with a smooth wooden floor.